题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-76686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-73722.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-73326.png)
解析
试题分析:因为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-76686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-92862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-30287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015203-78885.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015202-73326.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015152-28246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015152-67775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015152-29683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015152-28246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015142-88526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015142-26723.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015143-91074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015143-77088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015143-24016.png)
(1)求曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015142-88526.png)
(2)设直线l与曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015142-88526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015143-77755.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015144-76346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015144-45263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015144-74310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015134-84360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015134-62567.png)
切线长为 .
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015127-73769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015127-15604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015128-76648.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015128-29455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015128-50076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015128-11684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015129-67841.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015122-29522.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015122-84287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015122-29522.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-10189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-75029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-59585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-80686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-16823.png)
(1)求曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-16823.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108015123-63037.png)
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